OpenGL 3 and 4 with GLSL

Spherical/zonal harmonics library

ANARI Software Development Kit (SDK)

SPIRV-Reflect is a lightweight library that provides a C/C++ reflection API for SPIR-V shader bytecode in Vulkan applications.

Meta loader for Vulkan API

Universal Scene Description

Specification and reference implementation for the OpenPBR Surface shading model

Making it easier to work with shaders

One stop solution for all Vulkan samples

The render portion of Sample Viewer (glTF-Sample-Viewer)

The latest incremental release of SysML v2. Start here.

Dear ImGui: Bloat-free Graphical User interface for C++ with minimal dependencies

An assortment of assets that demonstrate features and capabilities of the glTF format

The Vulkan API Specification and related tools

Tool to validate glTF assets.

Sources for OpenXR loader, basic API layers, and example code.

glTF – Runtime 3D Asset Delivery

Physically-Based Rendering in glTF 2.0 using WebGL

MaterialX is an open standard for the exchange of rich material and look-development content across applications and renderers.

Blender glTF 2.0 importer and exporter